public Task <int> GetAsync(long key)
{
if (!this.lockDict.ContainsKey(key))
{
this.locations.TryGetValue(key, out int location);
Log.Info($"location get key: {key} {location}");
return(Task.FromResult(location));
}
LocationQueryTask task = new LocationQueryTask(key);
this.AddTask(key, task);
return(task.Task);
}
public Task <long> GetAsync(long key)
{
if (!this.lockDict.ContainsKey(key))
{
this.locations.TryGetValue(key, out long instanceId);
Log.Info($"location get key: {key} {instanceId}");
return(Task.FromResult(instanceId));
}
LocationQueryTask task = ComponentFactory.CreateWithParent <LocationQueryTask, long>(this, key);
this.AddTask(key, task);
return(task.Task);
}
/// <summary>
/// 异步请求位置
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public Task <long> GetAsync(long key)
{
if (!this.lockDict.ContainsKey(key)) //如果这个位置没有在锁状态
{
this.locations.TryGetValue(key, out long instanceId); //获取字典此key的值
Log.Info($"location get key: {key} {instanceId}");
return(Task.FromResult(instanceId)); //创建一个带返回值的、已完成的Task。
}
LocationQueryTask task = ComponentFactory.CreateWithParent <LocationQueryTask, long>(this, key);
this.AddTask(key, task); //添加到字典中缓存 待这个地址解锁后 会自动返回其新地址
return(task.Task); //等待位置转换完成 返回新的位置
}